| Dates: | 27 June 2005– 3 July 2005 |
| Number Edition: | 56th |
| Level: | 5S |
| Prize Money: | 170,000 |
| Venue: | Singapore Indoor Stadium |
| Location: | Kallang, Singapore |
| Ms: | Taufik Hidayat |
| Country Ms: | INA |
| Ws: | Zhang Ning |
| Country Ws: | CHN |
| Md1: | Sigit Budiarto |
| Country Md1: | INA |
| Md2: | Candra Wijaya |
| Country Md2: | INA |
| Wd1: | Zhang Dan |
| Country Wd1: | CHN |
| Wd2: | Zhang Yawen |
| Country Wd2: | CHN |
| Xd1: | Zhang Jun |
| Country Xd1: | CHN |
| Xd2: | Gao Ling |
| Country Xd2: | CHN |
| Previous: | 2004 |
| Next: | 2006 |
The 2005 Singapore Open (officially known as the Aviva Open Singapore 2005 for sponsorship reasons) was a five-star badminton tournament that took place at the Singapore Indoor Stadium in Singapore, from June 27 to July 3, 2005.[1] The total prize money on offer was US$170,000.
Below is the prize money distributions for each round (all in USD$).[2] In doubles it is referred as the prize money per pair:
| Category | Winner | Runner-up | Semi finalist | Quarter finalist | Last 8 | |
|---|---|---|---|---|---|---|
| Men's Singles | 13,600 | 6,800 | 3,400 | 1,700 | 680 | |
| Women's Singles | 11,730 | 5,610 | 3,060 | 1,530 | ||
| Men's Doubles | 12,240 | 6,800 | 4,080 | 2,380 | ||
| Women's Doubles | 10,370 | 6,800 | 3,740 | 1,870 | ||
| Mixed Doubles | 10,370 | 6,800 | 3,740 | 1,870 |